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angles software methodology can be classified as follows: from the perspective of development style it can be divided into top-down and bottom-up

software testing tools and project management tools. 2.1 software development method software development method is a subject whose research object

unified modeling language (UML) visual modeling object-oriented system analysis object-oriented system design.

architecture software architecture design method software architecture analysis and evaluation software middleware. 4) Object oriented system analysis and

common component standards (COM / DCOM / COM + CORBA and EJB).

software development environment and software process management. 2) Technical knowledge of software components: components and

Software requirements analysis and definition software design testing and maintenance software reuse software quality assurance and quality evaluation

B2C () C2C (customertocustomer individual to individual) Chapter 2 basic knowledge points of system

G2B (government to business government to citizen) G2C (government to G2B (government to business government to

knowledge portal (EKP) and Application Portal (EAP) 2) e-government G2G (government to government)

Supply chain management (SCM) business intelligence (BI) and enterprise portal (EP) can be divided into three categories: Information Portal (EIP)

Information engineering method information process and technology constitute the three elements of enterprise information system.

JamesAccording to James Martin the first task for an enterprise to implement informatization is to plan its strategic data under the guidance of its strategic objectives.

Spread; 3) Control; 4) Integration; 5) Data Management 1.3 information system construction the methods of information system construction mainly include: 1)

A system that generates information through processing. Basic functions of information system: data collection and input data transmission